US543242A - Starting ob stopping mechanism - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1 J. J. HEYS.

STARTING 0R STOPPING MEQHANISM.

Patented July 23, 1895.

Mentor:

Wibwsses:

2 Sheet ;.--Sheet 2.

- (No Model.)

7 J. J. HEYS. STARTING, 0R STOPPING MECHANISM.

No. 543,242. Patented July 23,1895.

6. MKM.

4 :NITED STATES PATENT OFFICE.

JOHN J. HEYS, OF LYNN, MASSACHUSETTS, ASSIGNOROF ONE-HALE TO MAURICE v. BRESNAHAN, OF SAME PLACE.

STARTING OR STOPPING MECHANISM.

. SPECIFICATION forming part of Letters Patent No. 543,242, dated July 23,1895.

Application filed March 18, l. 895

I To aZZ whom it may concern:

panying drawings, be hereinafter fully described, and specifically defined in the ap K IO pended claims. In said drawings, Figure 1 is a side elevation of the lower part of a machine embodying my improved stopping and starting mechanism, the upper part of the machine being broken away, as it is not necessary to be shown. Fig. 2 is a wow taken from the same standpoint as Fig. 1, but the machine is shown in section with the near part of the frame and other parts removed, the better to show interior parts. Fig. 3 is a detached perspective View showing the treadles, the rock-shaft, its connections to the treadles, the vibrating frame and its'connection with the pulley-clutch. Fig. at is also a detached perspective view showing the rockshaft and the means of actuating the Same by the actionof the large gear. I

The object of this invention is to provide a new starting and stopping mechanism for machinery; and it consists in a device which is started by depressing a treadle, and such movement of the machine is continued by holding the treadle depressed till' the stopping point is reached, when the machine is automatically stopped, regardless of the operator,

- who has no volition in the matter of such stopping, all as will be next herein described and pointed out in the appended claims.

Referring again to said drawings, A A represent side frames of the machine, which will be of such size, form, and proportion as the work to be performed by the machine will render necessary. In said frames is journaled a main shaft 0, on which is secured a large gear D, said Shaft being usually acrank-shaft; but if preferredit may be straight and have keyed upon it a smaller gear by which to impart mo tion to any desired machinery. A smaller shaft cl is journaled in rear of shaft 0 and carries the pulley G by which the machine is driven, and also carries the pinion c which meshes in and drives the large gear D.

In the rear of frames A is the rod g, on which Serial No. 542,085. (No model.)

are pivoted the treadles e and'fi'as also the vibrating frame consisting of bars h and 1' arranged outside of Said treadles, and near their front ends rigidly connected by bar j. At the front end of bar 1' a stirrup 10, that connects it with arm 9 secured upon shaft 4,isljournaled in the machine; said shaft carrying at its rear end a forked arm 5 that carries trundles that engage in groove 6-of hub 7, which is mount ed loosely on said shaft (1 and which engages and actuatesarm S that locks a clutch in the hub of pulley G, so that when so locked the pulley will drive the shaft; but said clutch may be any of the nu merouslocking-clutches,

and it is not herein claimed and need be no furtherspecified, as such clutches are familiar I to all machinists.

It will be seen that the barj that unites arms he passes beneath the treadles of, so that when either treadle is depressed it carries said arms downward and so actuates said clutch to put the machine in motion. Said treadle f is connected by a stirrup p with arm Z that extends to the front from a rock-Shaft 13, while treadle e is, by a stirrup 'q, connected with arm 1% that extends to the rear from said rock-shaft. Said rock-shaft is journaled in frames A and at its left-hand end (see Fig. 4.) it carries a short arm m, to which is secured an arm y that extends into the path of trundles 2 and 3 carried bygear D, said trun dle 2 being so positioned on the gear as to raise arm on and depress arm Zon shaft t,

while trundle 3 passes on the outside of arm y and raises the. same, and so depresses arm m and raises arm Z. Shaft d carries a brakepulley 33, that is engaged by brake-shoe 34, mounted in the heads of poppets 35 carried by bar h. Hence, when treadle eis depressed by the operator, frame h i is carried downward, thus removing brake-shoe 24 from pulley 33; and by depressing arm on on shaftt the arm y will be brought into the path of trundle 2, while the depressing of arms hi causes the clutch in the hub of pulley G to be locked and the machine put in motion; and when trundle 2 strikes arm y rock-shaft t is moved, treadle e is raised,and brake-shoe 34:, engaging wheel 33, will stop the machine as the clutch mechanism is disengaged. Then the depression of treadle f will move arm y away from trundle 2 into the path of trundle 3, while by the means already described the machine will make another half-revolution; and it will be seen that as each half-revolution is completed the machine is automatically stopped, whetherthe operator so wills or not, and that hence he has only to depress the proper treadle and so hold it till the machine makes its half-revolution and comes to a stop, a spring K being at its lower end attached to said vibrating frame, while its upper end is attached to frame A, so that said spring serves to raise said vibrating frame and the depressed treadle when released by the operator, and so that the arm 9 is raised and the clutch of pulley G released, while brake-shoe 34, acting on pulley 33, stops the machine.

The arm y may, if preferred, be attached directly to shaft t, but I deem the means shown preferable.

Various changes may be made in the details of construction without departing from the essential nature of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In combination, the main shaft 0, gear ping mechanism of a pair of treadles duly pivoted; a rock-shaft having arms extended I from opposite sides thereof and respectively D secured thereon, shaft d, its pulley G, a clutch on said pulley shaft, and pinion c meshing in gear D, the treadles e,f, independently mounted, the oscillating frame consisting of bars 72, i, united by bar j, rock shaftt with its arm y, and the trundles'fZ, 3, arranged on gear D to move said arm in opposite directions, arms Z, m, extended in opposite directions from shaft 15, to which the treadles are respectively pivoted: a reacting spring K to raise said oscillating frame when released, a brake pulley carried by shaft cl, and a brake shoe carried by frame h, and stirrup 1O connecting said oscillating frame with arm 9 of the pulley clutch device, whereby the machine is put in motion by depression of a treadle and is automatically stopped when a half revolution of gear D is made.

2. The combination of rock-shaft t having arm y, gear D provided with trundles 2, 3,

arranged to actuate said arm alternately in opposite directions; treadles e, f, respectively connected with arms Z, m, extending from opposite sides of shaft 25: the vibrating frame having barj arranged to raise said treadles, a stirrup by which said frame is connected with arm g of shaft 4, said shaft, provided with an arm that engages the hub of a clutch that renders the mechanism operative, and

the said clutch, all substantially as specified.

I arm y, all substantially as specified.

4:. The combination ofgear D provided with trundles 2, 3, shaft 25 having arm y arranged to be moved in opposite directions alternately by said trundles, treadles e f'attached to arms Z, m, extended from opposite sides of said shaft, rocking frame h, 'i, which is depressed by said treadles, the brake pulley mounted on shaft 0?, and a brake shoe carried by said rocking frame and arranged to engage said brake pulley, substantially as specified.

5. The combination in a'starting and stopconnected with said treadles; a rigid arm extended from said rock-shaft, two trundles mounted on awheel at unequal distances'from the axis thereof and so as to respectively encounter said arm on opposite sides and thereby move the same in opposite directions and thus alternately raising said treadles, after' the same have been depressed; a stirrup connected with the treadle mechanism and an arm with which said stirrup connects, a rockshaft from which said arm extends; a yoke carried by said last named rock-shaft; and a clutch mechanism connected with and actuated by said yoke all substantially as specified.

JOHN J. HEYS. Witnesses:

THOMAS J RYAN, JOHN H. MADDEN.

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